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Home >> Pontiac >> 2001 >> Aztek Base, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Diagnostic Procedures >> Preliminary Inspection & Adjustments >> Mechanical Inspection >> Compression
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Mechanical Inspection: Compression

Check engine mechanical condition with compression gauge, vacuum gauge, or engine analyzer. See engine analyzer manual for specific instructions. For compression specifications, see appropriate SERVICE & ADJUSTMENT SPECIFICATIONS article.

WARNING: Fuel injectors on many models are triggered by ignition switch during cranking mode. DO NOT use ignition switch during compression tests. Use remote starter to crank engine to prevent fire hazard or contamination of engine's oiling system.
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